Which of the following is incorrectly paired?
a. Giardia lamblia—eukaryotic protozoan
b. ringworm—eukaryotic animal
c. influenza—virus
d. cholera—bacterium
B
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_______ is anything that occupies space and has mass.
a. An element b. An atom c. Matter d. A molecule
If a daughter expresses an X-linked recessive gene, she inherited the trait from ____
a. her mother b. her father c. both parents d. neither parent e. her grandmother
If the figure above is an accurate depiction of relatedness, then which of the following should be correct?
1. The entire tree is based on maximum parsimony. 2. If all species depicted here make up a taxon, this taxon is monophyletic. 3. The last common ancestor of species B and C occurred more recently than the last common ancestor of species D and E. 4. Species A is the direct ancestor of both species B and species C. 5. The species present at position 3 is ancestral to C, D, and E. A) 1 and 3 B) 3 and 4 C) 2, 3, and 4 D) 1, 2, and 3
The most common form of gene expression regulation in both bacteria and eukaryotes is
a. translational control b. transcriptional control c. control of passage from the nucleus d. post-transcriptional control e. post-translational control